▎ 摘　　要

NOVELTY - Heat-resistant polyether ether ketone (PEEK) ball valve seat comprises PEEK resin powder, inorganic filler, silane coupling agent, and aluminum dihydrogen phosphate. USE - As heat-resistant polyether ether ketone ball valve seat. ADVANTAGE - The heat-resistant PEEK ball valve seat has improved heat resistance, wear resistance, mechanical strength, and antistatic performance of the composite material, increased heat distortion temperature, and has good practicability and industrial production value. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a process for processing the heat-resistant PEEK ball valve seat comprising (a) mixing graphene oxide with deionized water, stirring mechanically for 20 minutes, and ultrasonically dispersing for 15 minutes, adding nano alumina, and heating to 60 degrees C in a water bath, stirring mechanically for 30 minutes, dispersing ultrasonically for 20 minutes, filtering, placing in an oven, and drying at 80 degrees C for 2-3 hours to prepare inorganic fillers for use, (b) placing the polyether ether ketone resin powder in the ethanol solution, heating it to 55 degrees C in a water bath, mechanically stirring for 30 minutes, and ultrasonically dispersing for 20 minutes, adding aluminum dihydrogen phosphate, mechanically stirring for 2 hours, ultrasonically dispersing for 40 minutes, filtering, placing in an oven, and drying at 85 degrees C for 1 hour to prepare a mixture, and (c) (c1) placing the inorganic filler in deionized water, mechanically stirring for 30 minutes, ultrasonically dispersing for 30 minutes, adding 3-aminopropyltriethoxysilane, heating the water bath to 40 degrees C, mechanically stirring for 1 hours, ultrasonically dispersing for 30 minutes, adding the mixture, mechanically stirring for 2 hours, ultrasonically dispersing for 1 hour, filter, placing in an oven, heating up at a rate of 1.5 degrees C/minute, heating at 330 degrees C, reacting for 100 minutes, and cooling to room temperature to prepare raw materials, and (c2) placing the raw material processed in step (a) in a twin-screw extruder, performing melt-extruding, injection molding, and cooling to room temperature to obtain the product.